What is IEC 60268-34?

IEC 60268-34 is an international standard for sound recording and reproduction equipment. It sets the performance requirements and measurement methods for analogue audio amplifiers. This technical article aims to provide a thorough understanding of the standard and its importance in the audio industry.

Key Objectives and Scope

The primary objective of IEC 60268-34 is to ensure reliable and accurate audio signal reproduction. It specifies the minimum performance requirements that audio amplifiers must meet to achieve high-quality sound. The standard covers a wide range of parameters, including total harmonic distortion (THD), frequency response, signal-to-noise ratio (SNR), and intermodulation distortion. These parameters are critical in determining the overall fidelity and clarity of audio reproduction.

Measurement Methods and Criteria

IEC 60268-34 provides detailed guidelines on how to measure and evaluate the performance of audio amplifiers. It outlines specific test setups, equipment, and procedures to ensure consistent and comparable results. For example, the standard specifies the use of standardized test signals, such as sinusoidal, square wave, and noise signals, to assess different aspects of amplifier performance. It also defines the criteria for acceptable performance levels based on various classes of audio equipment.

Benefits and Implications

The adherence to IEC 60268-34 brings several benefits to the audio industry. First and foremost, it ensures that consumers can expect a consistent level of audio performance when using amplifiers compliant with the standard. Manufacturers benefit from having clear guidelines, which aid in the design and production of high-quality audio equipment. Additionally, the standard promotes fair competition by establishing a level playing field for all manufacturers, leading to innovation and continuous improvement in audio amplifier technology.